A tip: try to stay within three chunking levels for most of the time, digging deeper only on topics of particular interest where you want to bottom out the subject.

这里有个小提示：绝大多数情形，你应该试着只问三个以内的问题，而且只在那些你特别感兴趣然后希望彻底弄明白的事情上。

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One of the most popular and lucrative part-time jobs is to tutor, either for a college-prep class or a specific subject.

最受欢迎、也最有利可图的兼职工作之一就是为大学预科班或某一科目做家教。

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Most of the time they don't read the literature on the subject, or consult experts about the "right way" to do it, they just sit down, write the code, and make things work.

他们大多数时间不会阅读这个方面的文献，或者咨询专家什么是“正确的方式”，他们只是坐下来，写代码，然后解决问题。

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The subject of time is also a common theme, with "year" being the third most common noun, "day" in fifth place and "week" at 17.

BBC: NEWS | UK | The popularity of 'time' unveiled